Results 31 to 40 of about 30,611 (123)

Violent intra-night optical variability of the blazar S4 0954+65 during its unprecedented 2015 February outburst [PDF]

, 2015
In this letter we present results from intra-night monitoring in three colors (BRI) of the blazar S4 0954+65 during its recent (2015 February) unprecedented high state. We find violent variations on very short time scales, reaching magnitude change levels of 0.1-0.2 mag/h. On some occasions, changes of ~0.1 mag are observed even within ~10 min.
arxiv   +1 more source

Cohesive Powers of Linear Orders [PDF]

, 2019
Cohesive powers of computable structures can be viewed as effective ultraproducts over effectively indecomposable sets called cohesive sets. We investigate the isomorphism types of cohesive powers $\Pi _{C}% \mathcal{L}$ for familiar computable linear orders $\mathcal{L}$.
arxiv   +1 more source

Emission lines from illuminated warped accretion disks in AGN [PDF]

arXiv, 1999
The broad line profiles from a nonplanar (warped) accretion disk as a result from reprocessing of central hard radiation are studied in this paper. The disk is warped because of the Bardeen-Petterson effect. Obtained profiles depend significantly on the line of sight - they are asymmetric as well as frequency-shifted in most cases. Since such frequency
arxiv  

Joining and gluing sutured Floer homology [PDF]

arXiv, 2010
We give a partial characterization of bordered Floer homology in terms of sutured Floer homology. The bordered algebra and modules are direct sums of certain sutured Floer complexes. The algebra multiplication and algebra action correspond to a new gluing map on SFH. It is defined algebraically, and is a special case of a more general "join" map.
arxiv  

La sustitución lingüística del guanche en las Islas Canarias, un caso excepcional en la historia del mundo bereber = The Language Shift of Guanche Language in the Canary Islands, an Exceptional Case in the History of the Berber’s World

Espacio, Tiempo y Forma. Serie IV, Historia Moderna, 2019
El proceso de sustitución lingüística de la lengua bereber se remonta a los tiempos de apogeo de la expansión fenicia en el Mediterráneo y persiste hasta nuestros días.
Rumen Sosa Martín
doaj   +1 more source

A Latin-Hungarian Prisoners’ Song from the Beginning of the Eighteenth Century [PDF]

Studia Ethnologica Pragensia, 2023
‘Inolus, Inolus’ is one of the most mysterious text families in eighteenth-century Hungarian popular poetry. It emerges in both Latin and Hungarian manuscript versions, primarily in East Transylvania and later around Debrecen too.
Rumen István Csörsz
doaj  

On the Maximal Containments of Lower Central Series Ideals [PDF]

arXiv, 2015
We begin a discussion about the maximal containments of lower central series ideals: ideals generated by products of two-sided ideals of the lower central series of the free associative algebra on $n$ generators. We introduce two new ideas to the topic, the PBW grading and the pigeonhole principle, that help us give a complete classification of the ...
arxiv  

Machine learning reveals how personalized climate communication can both succeed and backfire [PDF]

arXiv, 2021
Different advertising messages work for different people. Machine learning can be an effective way to personalise climate communications. In this paper we use machine learning to reanalyse findings from a recent study, showing that online advertisements increased some people's belief in climate change while resulting in decreased belief in others.
arxiv  

Self-avoiding Walks of Lattice Strips [PDF]

arXiv, 2017
We study self-avoiding walks on restricted square lattices, more precisely on the lattice strips $\mathbb{Z} \times \{-1,0,1\}$ and $\mathbb{Z}\times \{-1,0,1,2\}$. We obtain the value of the connective constant for the $\mathbb{Z} \times \{-1,0,1\}$ lattice in a new shorter way and deduce close bounds for the connective constant for the $\mathbb{Z ...
arxiv  

Steepness and types of steepness of structure curves according to volume of aggregates of forest stands of different categories and tree species [PDF]

Silva Balcanica
Based on data on the structures according to volumes of aggregates of forest stands of different categories – seed-tree coniferous and deciduous, rapidly growing, coppice, and forest plantations, the steepness of the structure curves has been ...
Rumen D. Petrin
doaj   +3 more sources